© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Caer Pwll-Glas is a prehistoric hillfort situated in Wales and protected as a scheduled ancient monument by Cadw under reference CD099. The site occupies bedrock of Llandovery age, comprising mudstone, siltstone and sandstone formations that would have presented both practical and defensive advantages to its Iron Age builders. The underlying geology has shaped the monument's position and structural integrity over more than two millennia.
Hillforts of this type typically date from the Iron Age, though some may have been occupied or refortified in earlier or later periods. They were built at strategic locations offering commanding views across surrounding territory, serving as centres of settlement, refuge and territorial control. Caer Pwll-Glas follows this established pattern, with its location reflecting the Iron Age builder's understanding of landscape and defensive positioning.
The soft sedimentary bedrock of the Llandovery formation allowed for construction adapted to local conditions, whilst the elevated position would have provided natural strength to the fortification. Today, as a protected monument, Caer Pwll-Glas remains an important archaeological record of Iron Age settlement and social organisation in Wales, preserving evidence of prehistoric defensive architecture and land use within the Welsh landscape.
Caer Pwll-Glas is a scheduled monument protected by Cadw under reference CD099. View the official record →
Caer Pwll-Glas is a prehistoric hillfort situated in Wales and protected as a scheduled ancient monument by Cadw under reference CD099.
Caer Pwll-Glas dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Caer Pwll-Glas is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CD099.
Several scheduled monuments lie within 10 km, including Castell Gwar-Cwm (4.7 km), Daren Lead Mine Workings & Adit (5.7 km), Roman Fort 300m NW of Pen-Llwyn (6.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Caer Pwll-Glas's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Caer Pwll-Glas stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.